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Output declarations of all types before the functions declarations

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This fixes compilation of the generated code when a function uses a forward
declared type as was the case in e.g. std_vector example.
This commit is contained in:
Vadim Zeitlin 2016-04-13 15:37:32 +02:00
commit 62230758e4
1 changed files with 23 additions and 12 deletions
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35
Source/Modules/c.cxx
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@ -101,6 +101,7 @@ class C:public Language {
File *f_runtime;
File *f_header;
File *f_wrappers;
File *f_wrappers_types;
File *f_wrappers_decl;
File *f_init;
@ -409,9 +410,6 @@ public:
Swig_register_filebyname("proxy_header", f_wrappers_h);
{
// Create a string to which the wrapper declarations will be appended one by one.
f_wrappers_decl = NewString("");
String* const include_guard_name = NewStringf("SWIG_%s_WRAP_H_", Char(module));
String* const include_guard_begin = NewStringf(
"#ifndef %s\n"
@ -428,10 +426,17 @@ public:
begin_end_output_guard
include_guard_wrappers_h(f_wrappers_h, include_guard_begin, include_guard_end);
// All the struct types used by the functions go to f_wrappers_types so that they're certain to be defined before they're used by any functions. All the
// functions declarations go directly to f_wrappers_decl and f_wrappers_h_body combines both of them.
String* const f_wrappers_h_body = NewString("");
f_wrappers_types = NewString("");
f_wrappers_decl = NewString("");
{
cplusplus_output_guard
cplusplus_guard_wrappers(f_wrappers),
cplusplus_guard_wrappers_h(f_wrappers_decl);
cplusplus_guard_wrappers_h(f_wrappers_h_body);
if (except_flag) {
start_create_object();
@ -445,10 +450,16 @@ public:
Append(f_header, finish_create_object());
Append(f_header, finish_destroy_object());
}
Dump(f_wrappers_types, f_wrappers_h_body);
Delete(f_wrappers_types);
Dump(f_wrappers_decl, f_wrappers_h_body);
Delete(f_wrappers_decl);
} // close extern "C" guards
Dump(f_wrappers_decl, f_wrappers_h);
Delete(f_wrappers_decl);
Dump(f_wrappers_h_body, f_wrappers_h);
Delete(f_wrappers_h_body);
} // close wrapper header guard
// write all to the file
@ -1312,7 +1323,7 @@ ready:
if ((Cmp(kind, "variable") == 0) || (Cmp(kind, "function") == 0)) {
String* type = NewString("");
Printv(type, Getattr(node, "decl"), Getattr(node, "type"), NIL);
Printv(f_wrappers_decl, " ", SwigType_str(type, 0), " ", Getattr(node, "name"), ";\n", NIL);
Printv(f_wrappers_types, " ", SwigType_str(type, 0), " ", Getattr(node, "name"), ";\n", NIL);
Delete(type);
}
// WARNING: proxy delaration can be different than original code
@ -1376,7 +1387,7 @@ ready:
}
// declare type for specific class in the proxy header
Printv(f_wrappers_decl, "\ntypedef struct SwigObj_", name, " ", name, ";\n\n", NIL);
Printv(f_wrappers_types, "typedef struct SwigObj_", name, " ", name, ";\n\n", NIL);
Delete(sobj);
Delete(name);
@ -1387,15 +1398,15 @@ ready:
String *storage = Getattr(n, "storage");
int usetd = storage && Cmp(storage, "typedef") == 0;
if (usetd)
Append(f_wrappers_decl, "typedef struct {\n");
Append(f_wrappers_types, "typedef struct {\n");
else
Printv(f_wrappers_decl, "struct ", name, " {\n", NIL);
Printv(f_wrappers_types, "struct ", name, " {\n", NIL);
Node *node = firstChild(n);
emit_c_struct_def(node);
if (usetd)
Printv(f_wrappers_decl, "} ", name, ";\n\n", NIL);
Printv(f_wrappers_types, "} ", name, ";\n\n", NIL);
else
Append(f_wrappers_decl, "};\n\n");
Append(f_wrappers_types, "};\n\n");
Delete(sobj);
Delete(name);